What does "extract" mean?

Additional senses

1. 2.To take by selection; to choose out; to cite or quote, as a passage from a book. I have extracted out of that pamphlet a few notorious falsehoods. Swift. To extract the root (Math.), to ascertain the root of a number or quantity.
2. 3.That which is extracted or drawn out.
3. 4.A portion of a book or document, separately transcribed; a citation; a quotation.
4. 5.A decoction, solution, or infusion made by drawing out from any substance that which gives it its essential and characteristic virtue; essence; as, extract of beef; extract of dandelion; also, any substance so extracted, and characteristic of that from which it is obtained; as, quinine is the most important extract of Peruvian bark.
5. 6.(Med.) A solid preparation obtained by evaporating a solution of a drug, etc., or the fresh juice of a plant; -- distinguished from an abstract. See Abstract, n., 4.
6. 7.(Old Chem.) A peculiar principle once erroneously supposed to form the basis of all vegetable extracts; -- called also the extractive principle. [Obs.]
7. 8.Extraction; descent. [Obs.] South.
8. 9.(Scots Law) A draught or copy of writing; certified copy of the proceedings in an action and the judgement therein, with an order for execution. Tomlins. Fluid extract (Med.), a concentrated liquid preparation, containing a definite proportion of the active principles of a medicinal substance. At present a fluid gram of extract should represent a gram of the crude drug.